Fwiw, most electricians wouldn't give a sniff about this sort of thing. But it is really neat to know the electrical theory behind what makes your pants shake in the pods emerge scene in war of the worlds!

I have 2 EP600'S, 5 channels of krell class A power that doubles down to 4ohm @500w, and 2 channels that double down to 2ohm @1200w.

All of this is on a single 15A breaker.. The HT has never tripper the breaker. The real world power draw is much less than people assume..

It is so much less than people think, I think. The power requirements are transient in nature and not all speakers at once as you well know. I too am way over powered and could not possibly drive the amps to a point they would deliver full power ,especially with efficient speakers like axioms.

Well designed subs, amps etc that use current limiting methods in the cap filter circuit will limit inrush to a level below nuisance tripping. A precharge resistor or current relay are examples.

Tripping the breaker is not the only issue. What kind of brown out conditions are those transient peaks of current creating? Is this good for electronics in general? Well designed equipment will probably withstand some dirty power. Sensitive equipment like pjs or brands that skimp on parts, like samsung or onkyo are more likely to fail prematurely under these conditions over time.

When gear is undervoltage, it will draw more current to compensate. It is still trying to do its job. This, combined with transient voltage spikes, will kill those caps in a hurry and toast your power supply.

A house is wired up to safely support 100A. Do we use close to that? No way. Circuits are layed out to avoid nuisance tripping, voltage drop and overheating. Leaving headroom on circuits is a great safety practice, and is code. When practicable, an HT with specific loads should be wired the same way. Always based on rated load of the device (at max output.)